code: def tearDown(self):
      linalg.shutdown()
  
imports: from unittest import main, makeSuite, skipUnless, TestCase, TestSuite
  import pycuda.autoinit
  import pycuda.gpuarray
  import numpy
  from numpy.testing import assert_raises
  import skcuda.linalg
  import skcuda.rlinalg
  import skcuda.misc
label_desc: Use image node_id 2 for calling the test_rlinalg obj's underlying member method code with example usage: obj.tearDown() without return types